<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>3_类中方法this指向</title>
</head>

<body>
    <script type="text/javascript">
        class Person {
            constructor(name, age) {
                this.name = name;
                this.age = age
            }
            speak() {
                // 
                console.log('this==', this);
            }
        }
        const p1 = new Person('tom', 18);
        p1.speak();
        const x = p1.speak;
        x();
    </script>
</body>

</html>